Window-cleaning device.



c. BUDOLF. WINDOW CLEANING DEVICE.

APPLICATION FILED MAY 1, 1915. 4 1,167,935.

Patented Jan. 11, 1916.

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C. RUDOLF.

WINDOW CLEANING DEVICE.

APPLICATION FILED MAY 1, 1915.

Patented Jan. 11, 1916.

4 SHEETS-SHEET 2.

C. RUDOLF. wmuow CLEANING DEVICE.

APPLICATION FILED MAY 1, 1915.

Patented Jan. 11, 1916;

4 SHEETS-SHEET 3- C. RUDOLF.

WINDOW CLEANING DEVICE.

APPLICATION FILED MAY I. 1915.

' Patented Jan. 11, 191

- 4 SHEETS-SHEET 4.

5 each forearm of CHARLES BUDOLIE, OF CHICAGO, ILLINOIS.

WENDQWV-OLEANING DEVICE.

Specification of Letters Patent.

Patented Jan. ii, ieie.

Application filed May 1, 1915. Serial No. 25,163.

To all tvhom it may concern:

Be 1t known that 1, CHARLES RUDoLr, a citizen or" the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in lVindow-Cleaning Devices, 0which the following is a specification.

This invention relates particularly to window-cleaning devices adaptedto the purpose of simultaneously cleaning both sides of a window. Such adevice is particularly use ful for cleaning windows of otiice buildings,or the like, inasmuch as it can be used without endangering the life orlimb of the operator.

The primary object is to provide a. window-cleaning device which willoperate effectively to clean both sides of a. window, and which shall beof simple, cheap and durable construction.

The invention is illustrated in its preferred embodiment in theaccompanying drawings, in which- Figure 1 represents a broken sectionalview of a window with my improved window-cleaning device mounted forcleaning the window; Fig. 2, an enlarged broken sectional view takenshown in Fig. 1; Fig. 3, a horizontal sectional view taken approximatelyas indicated at line 3 of Fig. 2; Fig. 4, a sectional view taken asindicated at line 4. of Fig. 2; Figs. 5 and 6, broken sectional viewstaken as indicated at the corre ponding lines of Fig. 2; Fig. 7, abroken sectional view showing the construction of one of the elbows;Fig. 8, a broken view illustrating the manner ingvhich the cleaning toolisapplied to the device; and Fig. 9, a section taken as indicated atline 9 of Fig. 8.

. a In the preterred construction, which is illustrated, A represents abase-plate adapted to lie across a window-sill and be adjustably securedthereto; Bpa mounting adjustable longitudinally in the plate A andequipped with rock-shaft bearings B and sash-supports 13 G, a largetubular rock shaft rotatable in the bearings B D, D a pair of lower ormain arms connected by pivots. or shafts, l to bearings, with which theend-portions of the tubular rock-shaft C are equipped; E, E a pair ofupper or forc arms forming elbows with the arms D, with which they areconnected by pivots 2; F, F wiping devices, or tools, of any suitablecharacter, pivotally and detachably carried by parallel with the sectionthe upper ends of the arms E, E; G, G racks,

or rack-equipped slides mounted in the arms D, which are preferablytubular, and having their upper ends engaging gearfsegments 3, withwhich the lower ends of the arms E are equipped, and having their lowerends engaging gears 4; mounted on the shafts 1; G a rack slidablethrough the tubular rockshaft C, and meshing at one end with one of thegears 4, and at the other end with an 1dlergear 5, which meshes with theother gear 4; and H, H a pair of racks slidable through the rock-shaft Gand meshing at one end with gear-segments 6, with which the lower end ofone of the arms D is equipped, and meshing at the other end withidler-gears 7, which, in turn, mesh with the gear-segment 6, with whichthe base-portion of the other arm I) is equ pped.

The construction is such that the arms D have universal connection,through the medium of the pivots 1 and the tubular rockshaft C, with themounting B; also, such that the movements of one arm D are duplicated byments of one arm other arm E.

K represents the window-frame, which is equipped with a sill-plate 8;and K represents the window-sash carrying the glass K".

The base-plate, or sill-carried plate A, is provided with a guide 9, onwhich the base- E are duplicated by the portion of the mounting Bisfllongitudinally adjustable, said mounting being secured, whenadjusted in the guide 9. by a set-screw 10. The member A has one endprovided with a bracket 11 having a clamping-screw 12, for engaging theinner edge of'the ledge of the window-sill, and having a' clamping- Iscrew 13 for engaging the lower margin of the ledge of the window-sill.The body of the member A. is equipped with a lug 14, which carries aclamping screw 15 adapted to engage the outer edge of the top member ofthe window-sill 8. as shown in Fig. 1.- The outer end of the member A isequipped with a set-screw 16,- whose lower end is adapted to bear on theouter portion of the window-sill.

. The bearings D which flank the sashsupports B are provided withsuitable bores to receive and permit rotation of the tubular rocloshaftC. ()neot the bearings B is-providcd with a circumferential slot 17. inwhich works a stud 18 carried by the rock-shaft C, thus limiting therotation of the other arm D, and the 'movethe rock-shaft. in itsbearings. The rockshaft is free 'to turn, however, sufficiently to permt the tools F to swing downwardly to the plane, or below the plane, ofthe rock shaft. The sash-supports B which are on opposite sides of therock-shaft C, are re cessed at. their upper ends to accommodate thelower edge portion of the sash H The tubular rock-shaft G contains inits lower portion an insert. or lillet, C which is provided with guidesfor the rack G and the racks H. H. The member 7 is provided a each endwith a pair of bearings 19. 19 and a pair of bearings 20, 20, throughwhich the shafts, or pivots. 1, extend: and at one ent of the rock-shaftsaid bearings support the pin' or shafts, E21 and on which the idlers nand T are mounted, "respectively.

The racks 4' G are suitably mounted to slide in the tubular arms D, D.()ne of the ar F. equipped near its upper end with hail). or handle. 22by means of which the de\ ire mav be operated.

As will be understood from Figs. 8 and 9, each tool. or wiper, F whichmay comprise a sponge, mop or squeegee) has or includes a plate 24,which is detachably mounted on lugs 25, with which the upper end of thearm E is equi in'icd. in the illustration given, the plate 2% has itsouter or back surface quipped with lugs 26. one of which has aatria-pivot 2G entering the adjacent pivot- 25 of the arm E; and thepivot connection at the other lug 25 is provided by the pririg-projectedplunge r 27 equipped with a thumlrpiece 28. The thumb-piece 28 isdisposed opposite a finger-piece 29 carried by the lug 26, which carriesthe stub-pivot l v the means described. the tool I may be ren acd atwill from the arm E, and an other tell substituted. or a fresh cloth. orwiping: portion. applied. as the case may be.

* usc'of the improved device, the -'-'nlate A is securely clamped to thei l. and the sash is lowered to rest .aash-sup mrts il the mounting Blasing; suitably adjustcd in the clampingll; .l. The operator then.through the medium of the handle 23. actuates the arm ch is inside ofthe window, thus movcorrcsponding tool over the inner 1 cc of the glassin any desired direction. The movements of the actuated arm lliarecommuuiratcd through the corresponding rack ti. the raclc i and theother rack G, to the duplicat; arm F1: and the movements of the armwhich is near the operator, are

nnnmnicalcd through the rack G to the other arm l7. Thus. the tools Fare given corresponding movements. and both the in no and outer surfacesof the window are cleaned.

The device described is simple. easily operated. and the tools or wipingdevices are capable of a large range of movement.

upon :f

The foregoing detailed description has been given for clearness ofunderstanding only, and no unnecessary limitation should be understoodtherefrom, but the appended claims should be construed as broadly aspermissible. in view of the prior art.

What I claim as new, and desire to secure by Letters Patent, is-

1. .In a window-cleaning device, the combination with a suitable supportadapted to be carried by a window-sill, of a rock-member mountedthereon, a jointed arm carried by each end of said 1'()('l"-?)'1C111b91and flexing in a plane pcrpv l(llt :zlar to the window, a cleaning toolca. lQ each jointed arm, and motion transmitting mechanism con ncctcdwith the u per sections of the jointed arms and extending through thelower arms and through said rock-member, whereby the swinging movementof one upper. arn nsection about its lower arm-section is duplicated bythe upper arm-section on the opp0 site side of the window.

In a window-cleaning device, the 00111- bination of a base-memberadapted to be mounted on a window-sill, a sash-support and a rock-shafts pported thereby, a pair of jointed arms carried by said rock-shaft andflexing in a plane perpendicular to the window. and motion transmittingmechanism connecting the upper arm-sections and extending through saidrock-shaft.

3. In a window-cleaning device, the combination of a base-memberequipped with clamping means, a rock-shaft carried thereby, a pair oflower arms having pivotal connection with the rock-shaft, of such acharacter as to enable the rock-shaft to be rotated through the mediumthereof, mechanism connecting the base-portions of said arms, wherebythe swinging movement of one arm about its pivot is duplicated by theother arm, a pair of upper arms pivotally connected with saidfirst-named arms, and connecting i'uechanism between the base-portion ofthe upper arms, said mechanism extending through the lower arms andthrough said rccleshaft, whereby the swinging movement of one upper armahout its pivot is transmitted to the other upper arm.

-'l. in a window-cleaning device, the combination with a suitablemoui'iting. of a rockshaft journaled therein. a pair of lower armspivot-ally connected with the ends of said rock-shaft and equipped withgearsectors, rack connections between said gearsectors slidahlyconnected with said rockshaft. a pair of upper arms pivotally connectedwith the lower arms and equipped with gear-sectors, racks extendingthrough the lower arms and engaging said lastnamed gear-sectors. andgear and rack con nections between the lower ends of said lastnamedracks and mounted on said rockshaft.

5. In a window-cleaning device, the combination of a suitable mountingadapted to be carried by a window-sill, a tubular rockshaft journaledtherein, a pair of lower arms pivotally'honnected with said rock-shaftand equipped with gear-sectors, a rack slidably mounted in saidrock-shaft and serving to transmit motion from one of said gear-sectorsto the other, a pair of racks slidably connected with said arms, gearand rack connections mounted in the rock-shaft and connected with saidlast-named racks, a pair of upper arms equipped with gear-sectorsengaging the racks with which said lower arms are equipped, and cleaningtools mounted on said upper arms.

6. In a window-cleaning device, the combination of a base-plate equippedwith clamping means for securing it to a windowsill, a mountingadjustably carried by said base-plate and equipped with a sash-support,a rcck-shaft journaled in said mounting, joined arms mounted on saidrockshaft, cleaning tools carried by said jointed arms, and connectingmechanism between,

\ the arms extending through the rocleshaft.

,7. In a window-cleaning device, the combination of a base-plateequipped with means for securing it on a window-sill, a mountingadjustably connected with said baseplate, a sash-support carried by saidmounting, a tubular rock-shaft carried by said mounting, lower armspivotally connected with said rock-shaft and equipped with gear-sectors,pinion a d rack connections mounted in the rock-shaft and connected withsaid gear-sectors, racks slidably con nected with said arms, pinion andrackconnections mounted in therock-shaft and coa-- nected with :saidlast-named racks, upper arms pivotally connected with said firstnamedarms and equipped with gear-sectors meshing with the racks with whichthelower arms are equipped, and cleaning tools carried by said upperarms.

8. In a window-cleaning device, the com bination of a base-plateequipped with means for securing it on a window-sill, a mountingadjustably connected with said base-plate, a sash-support carried bysaid mounting, a tubular rock-shaft carried by said mounting, lower armspivotally connected with said rock-shaft and equipped with gear-sectors,pinion and rack connections mounted in the rock-shaft and connected withsaid gear-sectors, racks slidably connected with said arms, pinion andrack connections mounted in the rocleshaft and connected with saidlast-named racks, upper arms pivotally connected with said firstnamedarms and equipped with gear-sectors meshing with the racks with whichthe lower arms are equipped, and cleaning tools detachably mounted onthe free extremities of the upper arms.

9. In a window-cleaning device, the combination of a suitable mounting,a tubular rock-shaft mounted therein and having its lower portionequipped with, rack-guides, racks mounted in said guides, a pair oflower arms pivotally connected with said shaft and equipped withgear-sectors, one of which meshes with one of said racks, an idlerinterposed between the other gear-segmentand the same rack, a pair ofgears journaled coaXially with the pivots of said arms, one of whichmeshes with another of said racks, an idler interposed between the racklast referred to and the other gear, a pair of racks slidably connectedwith said arms and meshing with said gears, a pair of arms pivotallyconnected with said first-named arms and equipped with said last-namedracks, and cleaning tools carried by the free ends of said last-namedarms.

10. In a Window-cleaning device, the combination of a suitable mountingequipped with a sash-support, a tubular rock-shaft journaled in saidmounting and equipped with racks slidable through the rock-shaft, a pairof tubular lower arms pivotally connected with the rock-shaft and havinggearconnections with one of said racks, a pair of racks slidable throughsaid tubular arms and geared to another of said first-named racks, apair of upper arms 'pivotally connected with said first-named arms andequipped with gear-segments meshing with said last-named racks, andcleaning tools movably mounted on said upper arms.

O. C;-AVISUS, D. C. TH oRsnN.

gear-sectors meshing with

